Therefore the ESRB organization changed its mind about the game’s rating, and changed the rating from M (older than 17 years) to AO (Adult Only - older 21 years in America) this forced many shops to withdraw down the game from sale, because games with this rating aren’t bought by many people. Many businesses and organizations went against game creators. As a result, this part of the game is burned in the minds of lots and lots of people all over the world, regardless of if they’re trying to generate self-publicity (Clinton etc.), or they don't have anything else to do.
So if you picked up some girlfriend, she will invite you to her house after some time, there you'll see different things that you can do with her. The code is latent, and it will start after Hot Coffee application.
And what is the Hot Coffee? It is a mod, which activates a piece of hidden code in the game.